Alleviative Effects of C60 on the Trophic Transfer of Cadmium along the Food Chain in Aquatic Environment

2019 ◽  
Vol 53 (14) ◽  
pp. 8381-8388 ◽  
Author(s):  
Zuohong Chen ◽  
Xiaoshan Zhu ◽  
Xiaohui Lv ◽  
Yuxiong Huang ◽  
Wei Qian ◽  
...  
Keyword(s):  
Food Chain ◽  
Aquatic Environment ◽  
Trophic Transfer

Trophic transfer of naturally produced brominated aromatic compounds in a Baltic Sea food chain

Chemosphere ◽  
2016 ◽  
Vol 144 ◽  
pp. 1597-1604 ◽  
Author(s):  
Elin Dahlgren ◽  
Dennis Lindqvist ◽  
Henrik Dahlgren ◽  
Lillemor Asplund ◽  
Kari Lehtilä
Keyword(s):  
Baltic Sea ◽  
Food Chain ◽  
Aromatic Compounds ◽  
Trophic Transfer

Unionacean Clams as Indicators of Persistent Substances in Fresh Water

1983 ◽  
Vol 15 (S1) ◽  
pp. 37-42
Author(s):  
A Forester
Keyword(s):  
Fresh Water ◽  
Food Chain ◽  
Toxic Metals ◽  
Aquatic Environment ◽  
Extended Period ◽  
Coastal Pollution ◽  
Biological Availability ◽  
Abundance Distribution ◽  
Secondary Function ◽  
Shield Lakes

Measurement of total or nominal pollutant concentration in the physical compartment of the aquatic environment (water, sediments, etc.) seldom gives a valid indication of the ultimate threat to the ecosystem. An alternative is to use a living organis to reflect the biological availability of the contaminant and to integrate its changing levels in the environment by monitoring over an extended period. Pelecypods have been used as indicators of marine coastal pollution, but have received relatively little attention in fresh waters. The large, unionacean clams and mussels show a number of features which suggest that they would be useful as monitors of biological availability of freshwater pollutants: ability to accumulate a wide variety of contaminants; mode of feeding; position on food chain; longevity; sedentary habits; facility with which their age can be determined; abundance; distribution; size and hardiness. The current programme is concerned with: (1) evaluating unionaceans as potential indicators and the factors that affect pollutant uptake; (2) development of the methodology for monitoring; and (3) characterisation of the pollutant status of Ontario shield lakes which are subject to direct inputs of toxic metals with the precipitation and their mobilisation through the ecosystem as a secondary function of environmental acidification.

scholarly journals Micro-scale patchiness enhances trophic transfer efficiency and potential plankton biodiversity

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Anupam Priyadarshi ◽  
S. Lan Smith ◽  
Sandip Mandal ◽  
Mamoru Tanaka ◽  
Hidekatsu Yamazaki
Keyword(s):  
Food Chain ◽  
Trophic Transfer ◽  
Stability Domain ◽  
Transfer Efficiency ◽  
Ecosystem Models ◽  
Model Stability ◽  
Micro Scale ◽  
Trophic Transfer Efficiency ◽  
Generalized Framework ◽  
Aquatic Predators

AbstractRather than spatial means of biomass, observed overlap in the intermittent spatial distributions of aquatic predators and prey is known to be more important for determining the flow of nutrients and energy up the food chain. A few previous studies have separately suggested that such intermittency enhances phytoplankton growth and trophic transfer to sustain zooplankton and ultimately fisheries. Recent observations have revealed that phytoplankton distributions display consistently high degrees of mm scale patchiness, increasing along a gradient from estuarine to open ocean waters. Using a generalized framework of plankton ecosystem models with different trophic configurations, each accounting for this intermittency, we show that it consistently enhances trophic transfer efficiency (TE), i.e. the transfer of energy up the food chain, and expands the model stability domain. Our results provide a new explanation for observation-based estimates of unexpectedly high TE in the vast oligotrophic ocean and suggest that by enhancing the viable trait space, micro-scale variability may potentially sustain plankton biodiversity.

Trophic Transfer of Au Nanoparticles from Soil along a Simulated Terrestrial Food Chain.

2012 ◽  
Vol 46 (17) ◽  
pp. 9753-9760 ◽  
Author(s):  
Jason M. Unrine ◽  
W. Aaron Shoults-Wilson ◽  
Oksana Zhurbich ◽  
Paul M. Bertsch ◽  
Olga V. Tsyusko
Keyword(s):  
Food Chain ◽  
Au Nanoparticles ◽  
Trophic Transfer ◽  
Terrestrial Food Chain

Trophic Transfer of Lead Through a Model Marine Four-Level Food Chain: Tetraselmis suecica, Artemia franciscana, Litopenaeus vannamei, and Haemulon scudderi

2010 ◽  
Vol 61 (2) ◽  
pp. 280-291 ◽  
Author(s):  
M. F. Soto-Jiménez ◽  
C. Arellano-Fiore ◽  
R. Rocha-Velarde ◽  
M. E. Jara-Marini ◽  
J. Ruelas-Inzunza ◽  
...  
Keyword(s):  
Food Chain ◽  
Litopenaeus Vannamei ◽  
Trophic Transfer ◽  
Artemia Franciscana ◽  
Tetraselmis Suecica

scholarly journals Establishing the baseline for using plankton as biosensor

2019 ◽  
Author(s):  
Vito P. Pastore ◽  
Thomas Zimmermann ◽  
Sujoy K. Biswas ◽  
Simone Bianco
Keyword(s):  
Artificial Intelligence ◽  
Food Chain ◽  
Aquatic Environment ◽  
Morphological Features ◽  
Woods Hole Oceanographic Institution ◽  
Large Dataset ◽  
Environmental Threat ◽  
Detection Approach ◽  
Basic Set ◽  
Plankton Species

ABSTRACTPlankton is at the bottom of the food chain. Microscopic phytoplankton account for about 50% of all photosynthesis on Earth, corresponding to 50 billion tons of carbon each year, or about 125 billion tonnes of sugar[1]. Plankton is also the food for most species of fish, and therefore it represents the backbone of the aquatic environment. Thus, monitoring plankton is paramount to infer potential dangerous changes to the ecosystem. In this work we use a collection of plankton species extracted from a large dataset of images from the Woods Hole Oceanographic Institution (WHOI), to establish a basic set of morphological features for supporting the use of plankton as a biosensor. Using a perturbation detection approach, we show that it is possible to detect deviation from the average space of features for each species of plankton microorganisms, that we propose could be related to environmental threat or perturbations. Such an approach can open the way for the development of an automatic Artificial Intelligence (AI) based system for using plankton as biosensor.

scholarly journals Metabolic, Bioproductive and Reproductive Effects of Aquatic Exposure to Cadmium in Dish- A Review

2017 ◽  
Vol 74 (1) ◽  
pp. 1
Author(s):  
Bogdan GEORGESCU ◽  
Daniel MIERLITA ◽  
Danut STRUTI ◽  
Hermina KISS ◽  
Anca BOUARU
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Food Security ◽  
Natural Resources ◽  
Food Chain ◽  
Aquatic Environment ◽  
Reproductive Effects ◽  
Human Food Chain ◽  
Growth Development ◽  
Cd Exposure

Cadmium (Cd) exposure in fish is the result of aquatic pollution with heavy metals, which is mainly caused byanthropic interventions. Rarely, Cd mobilization from natural resources takes place. Bioaccumulation in tissues and organs is a property of this heavy metal, to generate various pathological effects and major risks due to bio-propagation within the human food chain. Wehereby reviewed the main circumstances and levels of exposure to Cd in the aquatic environment, and effects on growth, development and reproduction induced by its bioaccumulation in fish, as well as the possible ramifications for food security in humans. 

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